Home / 27,675.06-38,191.40-15,738.42

Finding the Fourth Proportional to 27,675.06, 38,191.40 and 15,738.42

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Solution

The fourth proportional to 27,675.06, 38,191.40 and 15,738.42 is: 21,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,675.06 : 38,191.40 = 15,738.42 : x
  2. Step 2: Convert to fraction form
    27,675.06/38,191.40 = 15,738.42/x
  3. Step 3: Cross multiply
    27,675.06x = 38,191.40 × 15,738.42
  4. Step 4: Simplify right side
    27,675.06x = 601,072,293.59
  5. Step 5: Solve for x
    x = 601,072,293.59/27,675.06
  6. Step 6: Final answer
    x = 21,718.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.